---
product_id: 27012961
title: "Pentair R161178 No.2 pH Test Solution, 1-Ounce"
brand: "pentair"
price: "HK$144"
currency: HKD
in_stock: true
reviews_count: 8
url: https://www.desertcart.hk/products/27012961-pentair-r161178-no-2-ph-test-solution-1-ounce
store_origin: HK
region: Hong Kong
---

# Compact 4x7x10.5 inch size 1 oz precision test solution Reliable replacement for Solution B Pentair R161178 No.2 pH Test Solution, 1-Ounce

**Brand:** pentair
**Price:** HK$144
**Availability:** ✅ In Stock

## Summary

> 🧪 Stay ahead with precision pH testing – because your pool deserves the best!

## Quick Answers

- **What is this?** Pentair R161178 No.2 pH Test Solution, 1-Ounce by pentair
- **How much does it cost?** HK$144 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/27012961-pentair-r161178-no-2-ph-test-solution-1-ounce)

## Best For

- pentair enthusiasts

## Why This Product

- Trusted pentair brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Highly rated with 4.6 stars and top 15 rank in Hydroponic pH Control.
- • **Compact & Convenient:** Small 1-ounce bottle fits perfectly in your testing kit without bulk.
- • **Seamless Replacement:** Directly replaces Solution B for hassle-free pool and hydroponic testing.
- • **Accurate pH Monitoring:** Ensure precise acid level readings every time with trusted Pentair quality.
- • **Consistent Performance:** Delivers reliable, repeatable results to keep your water chemistry balanced.

## Overview

Pentair R161178 No.2 pH Test Solution is a 1-ounce reagent designed for accurate acid level measurement in pools and hydroponics. Compact and easy to use, it replaces the older Solution B, offering consistent, reliable results trusted by professionals and rated 4.6 stars by users.

## Description

Pentair Rainbow R161178 No.2 pH Test Solution - 1 OZ

Review: Works consistently - Very reliable testing solution.
Review: Good Nr 2 solution replacement for pool testing kits. - This should give you a general idea of your acid levels on your kit. Good replacement for the super old reagent I had just run out of on my kit.

## Features

- pH test solution
- 1/2-ounces solution bottle
- Includes 1 per pack
- Replaces solution B
- Measures 4-inch length by 10-1/2-inch height by 7-inch width

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002Z0MPQ |
| Best Sellers Rank | #157,591 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #13 in Hydroponic pH Control |
| Customer Reviews | 4.6 4.6 out of 5 stars (139) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Item model number | R161178 |
| Manufacturer | Pentair - Distribution |
| Product Dimensions | 4 x 7 x 10.5 inches |

## Product Details

- **Brand:** Pentair
- **Manufacturer:** Pentair - Distribution
- **Ph Range:** 4-10
- **Recommended Uses For Product:** Swimming Pool
- **UPC:** 788379003395

## Images

![Pentair R161178 No.2 pH Test Solution, 1-Ounce - Image 1](https://m.media-amazon.com/images/I/61lmsFGyodL.jpg)
![Pentair R161178 No.2 pH Test Solution, 1-Ounce - Image 2](https://m.media-amazon.com/images/I/21Hm8YYkvCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works consistently
*by N***Y on October 11, 2025*

Very reliable testing solution.

### ⭐⭐⭐⭐⭐ Good Nr 2 solution replacement for pool testing kits.
*by K***N on August 12, 2023*

This should give you a general idea of your acid levels on your kit. Good replacement for the super old reagent I had just run out of on my kit.

### ⭐⭐⭐⭐⭐ Works well
*by A***C on May 9, 2023*

Replacement for the pentair rainbow ph solution.

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**Shop now:** [https://www.desertcart.hk/products/27012961-pentair-r161178-no-2-ph-test-solution-1-ounce](https://www.desertcart.hk/products/27012961-pentair-r161178-no-2-ph-test-solution-1-ounce)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-13*